Journal of The Optical Society of America B-optical Physics最新文献_第7页

Enhancing the quantum entanglement and EPR steering of a coupled optomechanical system with a squeezed vacuum field 压缩真空场增强光-力耦合系统的量子纠缠和EPR导向

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-16 DOI: 10.1364/josab.495520

Shao-Xiong Wu, Cheng-Hua Bai, Gang Li, Chang-Shui Yu, Tiancai Zhang

引用次数: 0

Light scattering by a periodically time-modulated object of arbitrary shape: The extended boundary condition method 任意形状的周期性时调制物体的光散射:扩展边界条件法

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-12 DOI: 10.1364/josab.502171

N. Stefanou, Ioannis Stefanou, Evangelos Almpanis, Nikos Papanikolaou, Puneet Garg, Carsten Rockstuhl

{"title":"Light scattering by a periodically time-modulated object of arbitrary shape: The extended boundary condition method","authors":"N. Stefanou, Ioannis Stefanou, Evangelos Almpanis, Nikos Papanikolaou, Puneet Garg, Carsten Rockstuhl","doi":"10.1364/josab.502171","DOIUrl":"https://doi.org/10.1364/josab.502171","url":null,"abstract":"A proper generalization of the extended boundary condition method to calculate the transition matrix, T , for electromagnetic scattering from a homogeneous and isotropic body of arbitrary shape, characterized by a periodically time-varying electric permittivity, is presented. The application of the method on a specific example of a spheroidal dielectric particle confirms that time modulation induces strong inelastic scattering, accompanied by energy transfer between the scatterer and the light field, when the difference of the incident wave frequency to a particle optical resonance matches an integer multiple of the modulation frequency. Moreover, it is shown that, for nonspherical scatterers, these effects can be selectively tuned by external means such as the polarization and the propagation direction of the incident light beam. The method is readily implementable in available dynamic multiple-scattering computer codes, and, because of its versatility and computational efficiency, it can offer new opportunities for studying more complex time-varying photonic structures.","PeriodicalId":17280,"journal":{"name":"Journal of The Optical Society of America B-optical Physics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135923420","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Wavelength-Independent Bragg-like Reflection in Uniaxial Bi-Anisotropic Media 单轴双各向异性介质中与波长无关的类布拉格反射

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-12 DOI: 10.1364/josab.502652

Steven. Koufidis, Martin McCall

引用次数: 0

Impact of random spatial noise of a laser beam on the probability of fluence to exceed the threshold value 激光束的随机空间噪声对影响超过阈值的概率的影响

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-12 DOI: 10.1364/josab.497901

Anton Kochetkov, Ekaterina Kocharovskaya, Efim Khazanov

引用次数: 2

Surface absorption channels in light absorption by a 2D-material coated particle 表面吸收通道中的光吸收由二维材料包覆的粒子

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-12 DOI: 10.1364/josab.502612

Shangyu Zhang, Jian Dong, Wenjie Zhang, Lanxin Ma, LINHUA LIU

{"title":"Surface absorption channels in light absorption by a 2D-material coated particle","authors":"Shangyu Zhang, Jian Dong, Wenjie Zhang, Lanxin Ma, LINHUA LIU","doi":"10.1364/josab.502612","DOIUrl":"https://doi.org/10.1364/josab.502612","url":null,"abstract":"Light absorption enhancement in micro- and nanoparticles has garnered considerable attention through coated 2D materials, which are physically homogenized by surface conductivities and surface currents within the electromagnetic boundary conditions. However, the electromagnetic absorption through the surface channel remains unexamined, hindering a deeper understanding of the underlying mechanisms of light absorption. In this work, we analytically derive the effective cross sections of surface absorption for a 2D-material-coated sphere, based on the framework of Mie theory amended by the surface conductivity. Our theoretical analysis confirms the absorption unitarity in wrapped particles, whereby the total absorption is equivalent to the sum of surface and volume absorptions. Considering optical dispersion of a polar interior, we identify a blue shift in the resonance wavelength induced by the 2D coating, which leads to a decrease in material dissipation and thus volume absorption within the particle itself in spite of a large field enhancement inside the particle. Finally, through a realistic case of small graphene-wrapped MgO spheres, we illustrate the dominant role of the surface absorption channel on the mechanism of absorption enhancements.","PeriodicalId":17280,"journal":{"name":"Journal of The Optical Society of America B-optical Physics","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135923274","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the design of multi-vortex beam multiplexers using programmable metasurfaces 基于可编程元表面的多涡旋波束复用器设计

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-11 DOI: 10.1364/josab.502102

Behrad Rezaee Rezavan, Mohammad Yazdi, Seyedehsan Hosseininejad

引用次数: 0

Energy Transport Induced by Transition from Weak to Strong Coupling Regime Between Non-Hermitian Optical Systems 非厄米光学系统弱耦合到强耦合的能量输运

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-10 DOI: 10.1364/josab.499439

Ivan Vovcenko, Alexander Zyablovsky, Alexander Pukhov, Evgeny Andrianov

引用次数: 0

Second harmonic enhancement effect in the double U split-ring resonators 双U型分环谐振器的二次谐波增强效应

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-10 DOI: 10.1364/josab.497381

Jiahao Hu, chaoying zhao

{"title":"Second harmonic enhancement effect in the double U split-ring resonators","authors":"Jiahao Hu, chaoying zhao","doi":"10.1364/josab.497381","DOIUrl":"https://doi.org/10.1364/josab.497381","url":null,"abstract":"Frequency multiplication plays an important role in spectrum research; therefore, in order to achieve enhancement of the second harmonic, the internal structure of nonlinear plasma metamaterial cells becomes more and more complex. The original harmonic oscillator model only regards the cell as a single harmonic oscillator, and a complete understanding of the physical processes involved in harmonic generation experiments in plasmonics is still lacking. In the case in which the plasma structure in a single cell becomes more and more complex, it is not reasonable to regard the entire cell as a single nonlinear oscillator. So expanding the harmonic oscillator model becomes more significant. In this paper, the internal structure of the proposed double U split-ring resonators (DU-SRRs) is regarded as two harmonic oscillators with different resonant frequencies, and the generation process of the enhanced second harmonic is explained by the resonance theorem. The second and third order nonlinear coefficients of the metamaterial are calculated, and the theoretical second harmonic conversion efficiency is obtained by using the second order nonlinear coefficients. Compared with the simulation results of the DU-SRR based on the split-ring resonator, we validate this classical theory as well as the associated numerical algorithm. The ability of the DU-SRR to enhance the second harmonic is proved, and the physical changes inside the cell and the reasons for the enhancement are explained in detail. This method can be used to analyze the nonlinear phenomena in metamaterials with complex cell structures.","PeriodicalId":17280,"journal":{"name":"Journal of The Optical Society of America B-optical Physics","volume":"46 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Analytical solutions for electromagnetic surface states at the interface between metal and gyromagnetic media 金属与回旋磁介质界面处电磁表面态的解析解

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-10 DOI: 10.1364/josab.499881

Yi-Dong Zheng, Jianfeng Chen, Zitao Ji, hao Lin, Zhiyuan Li

{"title":"Analytical solutions for electromagnetic surface states at the interface between metal and gyromagnetic media","authors":"Yi-Dong Zheng, Jianfeng Chen, Zitao Ji, hao Lin, Zhiyuan Li","doi":"10.1364/josab.499881","DOIUrl":"https://doi.org/10.1364/josab.499881","url":null,"abstract":"We systematically study the surface states at the interface between semi-infinite metal and gyromagnetic media, considering three orthogonal magnetization directions. By solving a full vectorial polarization-complete evanescent wave equation derived from Maxwell’s equations and all four boundary conditions, we obtain rigorous analytical solutions for the surface states. All analytical dispersion equations and field equations under the three configurations are solved. Simultaneously, the solutions also reveal the intriguing features of surface plasmon polaritons (SPPs) under the gyromagnetic effect. In the polar configuration (where the magnetization is perpendicular to the interface), the gyromagnetic effect uniquely results in candlelight-like field patterns in SPP. In the transversal configuration (where the magnetization is parallel to the interface and perpendicular to propagation), the unidirectional magnetic surface state is found. In the longitudinal configuration (where the magnetization is parallel to propagation), the SPP also exhibits candlelight-like field patterns but manifests a different polarization from the polar configuration. Our results reveal peculiar behaviors of SPPs under the gyromagnetic effect and would deepen the understanding of the magneto-optical effect on interfaces.","PeriodicalId":17280,"journal":{"name":"Journal of The Optical Society of America B-optical Physics","volume":"207 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136254462","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

O-band BDFA achieves 24dB ultra-wideband signal range effective gain clamping with a maximum float of 0.42 dB o波段BDFA实现了24dB的超宽带信号范围有效增益箝位，最大浮动为0.42 dB

4区物理与天体物理

Journal of The Optical Society of America B-optical Physics Pub Date : 2023-10-09 DOI: 10.1364/josab.502678

Dingchen Wang, Li Pei, Jingjing Zheng, Jianshuai wang, Wenqiang Hou, Fuhao Zhang, Xiao Ye, Jing Li, Tigang NIng

{"title":"O-band BDFA achieves 24dB ultra-wideband signal range effective gain clamping with a maximum float of 0.42 dB","authors":"Dingchen Wang, Li Pei, Jingjing Zheng, Jianshuai wang, Wenqiang Hou, Fuhao Zhang, Xiao Ye, Jing Li, Tigang NIng","doi":"10.1364/josab.502678","DOIUrl":"https://doi.org/10.1364/josab.502678","url":null,"abstract":"Fiber amplifiers are used in transmission systems with gain-clamping techniques to avoid unexpected situations such as sudden changes in incoming power due to unstable factors. The O-band bismuth-doped fiber amplifier (BDFA) has developed rapidly in recent years and has been reported in transmission cases, but its application in clamping is still relatively rare. In past work, we have investigated the clamping effect of a BDFA under a coupler ring cavity under different pumping schemes, while in this work we further improved the structure by replacing the coupler with a circulator to comparatively investigate the limit range of gain stabilization. The experimental results demonstrate that, when the loop loss is 0 dB, the BDFA exhibits nearly identical gain-clamping performance, including flat range and maximum float, with both structures. However, as the loss increases, the circulator structure exhibits a wider gain flatness range than the coupler structure. With pump power of 1 W and VOA loss of 0 dB, the BDFA achieves a maximum gain float of 0.42 dB in the coupler configuration and 0.56 dB in the circulator configuration over an ultra-wide input range of −15dBm to 9 dBm. In addition, the gain flat range under the circulator structure is 3 dB wider than the coupler structure when the VOA loss is 10 dB. Therefore, with the pursuit of a balance between the higher average gain and the widest flat range, it is most advantageous to consider the circulator in the ring cavity. This work gives a valuable reference for the application of the O-band BDFA in gain clamping.","PeriodicalId":17280,"journal":{"name":"Journal of The Optical Society of America B-optical Physics","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135043325","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0